"The available evidence suggests that functional interactions between the hippocampus and prefrontal cortex in cognition and memory are more complex than previously anticipated, with the possibility for bidirectional regulation of synaptic strength as a function of the specific demands of tasks."

It seems that the hippocampus consolidated longterm memory during sleep. So according to Neojungian Model different types should consolidate different types of memories during sleep via the Hippocampus and the Limbic system.